// Copyright 2016 The Prometheus Authors // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package triton import ( "context" "fmt" "net" "net/http" "net/http/httptest" "net/url" "strconv" "strings" "testing" "github.com/prometheus/client_golang/prometheus" "github.com/prometheus/common/config" "github.com/prometheus/common/model" "github.com/stretchr/testify/require" "github.com/prometheus/prometheus/discovery" ) var ( conf = SDConfig{ Account: "testAccount", Role: "container", DNSSuffix: "triton.example.com", Endpoint: "127.0.0.1", Port: 443, Version: 1, RefreshInterval: 1, TLSConfig: config.TLSConfig{InsecureSkipVerify: true}, } badconf = SDConfig{ Account: "badTestAccount", Role: "container", DNSSuffix: "bad.triton.example.com", Endpoint: "127.0.0.1", Port: 443, Version: 1, RefreshInterval: 1, TLSConfig: config.TLSConfig{ InsecureSkipVerify: false, KeyFile: "shouldnotexist.key", CAFile: "shouldnotexist.ca", CertFile: "shouldnotexist.cert", }, } groupsconf = SDConfig{ Account: "testAccount", Role: "container", DNSSuffix: "triton.example.com", Endpoint: "127.0.0.1", Groups: []string{"foo", "bar"}, Port: 443, Version: 1, RefreshInterval: 1, TLSConfig: config.TLSConfig{InsecureSkipVerify: true}, } cnconf = SDConfig{ Account: "testAccount", Role: "cn", DNSSuffix: "triton.example.com", Endpoint: "127.0.0.1", Port: 443, Version: 1, RefreshInterval: 1, TLSConfig: config.TLSConfig{InsecureSkipVerify: true}, } ) func newTritonDiscovery(c SDConfig) (*Discovery, discovery.DiscovererMetrics, error) { reg := prometheus.NewRegistry() refreshMetrics := discovery.NewRefreshMetrics(reg) // TODO(ptodev): Add the ability to unregister refresh metrics. metrics := c.NewDiscovererMetrics(reg, refreshMetrics) err := metrics.Register() if err != nil { return nil, nil, err } d, err := New(nil, &c, metrics) if err != nil { return nil, nil, err } return d, metrics, nil } func TestTritonSDNew(t *testing.T) { td, m, err := newTritonDiscovery(conf) require.NoError(t, err) require.NotNil(t, td) require.NotNil(t, td.client) require.NotZero(t, td.interval) require.NotNil(t, td.sdConfig) require.Equal(t, conf.Account, td.sdConfig.Account) require.Equal(t, conf.DNSSuffix, td.sdConfig.DNSSuffix) require.Equal(t, conf.Endpoint, td.sdConfig.Endpoint) require.Equal(t, conf.Port, td.sdConfig.Port) m.Unregister() } func TestTritonSDNewBadConfig(t *testing.T) { td, _, err := newTritonDiscovery(badconf) require.Error(t, err) require.Nil(t, td) } func TestTritonSDNewGroupsConfig(t *testing.T) { td, m, err := newTritonDiscovery(groupsconf) require.NoError(t, err) require.NotNil(t, td) require.NotNil(t, td.client) require.NotZero(t, td.interval) require.NotNil(t, td.sdConfig) require.Equal(t, groupsconf.Account, td.sdConfig.Account) require.Equal(t, groupsconf.DNSSuffix, td.sdConfig.DNSSuffix) require.Equal(t, groupsconf.Endpoint, td.sdConfig.Endpoint) require.Equal(t, groupsconf.Groups, td.sdConfig.Groups) require.Equal(t, groupsconf.Port, td.sdConfig.Port) m.Unregister() } func TestTritonSDNewCNConfig(t *testing.T) { td, m, err := newTritonDiscovery(cnconf) require.NoError(t, err) require.NotNil(t, td) require.NotNil(t, td.client) require.NotZero(t, td.interval) require.NotZero(t, td.sdConfig) require.Equal(t, cnconf.Role, td.sdConfig.Role) require.Equal(t, cnconf.Account, td.sdConfig.Account) require.Equal(t, cnconf.DNSSuffix, td.sdConfig.DNSSuffix) require.Equal(t, cnconf.Endpoint, td.sdConfig.Endpoint) require.Equal(t, cnconf.Port, td.sdConfig.Port) m.Unregister() } func TestTritonSDRefreshNoTargets(t *testing.T) { tgts := testTritonSDRefresh(t, conf, "{\"containers\":[]}") require.Nil(t, tgts) } func TestTritonSDRefreshMultipleTargets(t *testing.T) { dstr := `{"containers":[ { "groups":["foo","bar","baz"], "server_uuid":"44454c4c-5000-104d-8037-b7c04f5a5131", "vm_alias":"server01", "vm_brand":"lx", "vm_image_uuid":"7b27a514-89d7-11e6-bee6-3f96f367bee7", "vm_uuid":"ad466fbf-46a2-4027-9b64-8d3cdb7e9072" }, { "server_uuid":"a5894692-bd32-4ca1-908a-e2dda3c3a5e6", "vm_alias":"server02", "vm_brand":"kvm", "vm_image_uuid":"a5894692-bd32-4ca1-908a-e2dda3c3a5e6", "vm_uuid":"7b27a514-89d7-11e6-bee6-3f96f367bee7" }] }` tgts := testTritonSDRefresh(t, conf, dstr) require.NotNil(t, tgts) require.Len(t, tgts, 2) } func TestTritonSDRefreshNoServer(t *testing.T) { td, m, _ := newTritonDiscovery(conf) _, err := td.refresh(context.Background()) require.Error(t, err) require.True(t, strings.Contains(err.Error(), "an error occurred when requesting targets from the discovery endpoint")) m.Unregister() } func TestTritonSDRefreshCancelled(t *testing.T) { td, m, _ := newTritonDiscovery(conf) ctx, cancel := context.WithCancel(context.Background()) cancel() _, err := td.refresh(ctx) require.Error(t, err) require.True(t, strings.Contains(err.Error(), context.Canceled.Error())) m.Unregister() } func TestTritonSDRefreshCNsUUIDOnly(t *testing.T) { dstr := `{"cns":[ { "server_uuid":"44454c4c-5000-104d-8037-b7c04f5a5131" }, { "server_uuid":"a5894692-bd32-4ca1-908a-e2dda3c3a5e6" }] }` tgts := testTritonSDRefresh(t, cnconf, dstr) require.NotNil(t, tgts) require.Len(t, tgts, 2) } func TestTritonSDRefreshCNsWithHostname(t *testing.T) { dstr := `{"cns":[ { "server_uuid":"44454c4c-5000-104d-8037-b7c04f5a5131", "server_hostname": "server01" }, { "server_uuid":"a5894692-bd32-4ca1-908a-e2dda3c3a5e6", "server_hostname": "server02" }] }` tgts := testTritonSDRefresh(t, cnconf, dstr) require.NotNil(t, tgts) require.Len(t, tgts, 2) } func testTritonSDRefresh(t *testing.T, c SDConfig, dstr string) []model.LabelSet { var ( td, m, _ = newTritonDiscovery(c) s = httptest.NewTLSServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { fmt.Fprintln(w, dstr) })) ) defer s.Close() u, err := url.Parse(s.URL) require.NoError(t, err) require.NotNil(t, u) host, strport, err := net.SplitHostPort(u.Host) require.NoError(t, err) require.NotEmpty(t, host) require.NotEmpty(t, strport) port, err := strconv.Atoi(strport) require.NoError(t, err) require.NotZero(t, port) td.sdConfig.Port = port tgs, err := td.refresh(context.Background()) require.NoError(t, err) require.Len(t, tgs, 1) tg := tgs[0] require.NotNil(t, tg) m.Unregister() return tg.Targets }